# Zoom Cobrowse SDK Environment Variables ## Standard `.env` keys | Variable | Required | Used for | Where to find | | --- | --- | --- | --- | | `ZOOM_SDK_KEY` | Yes | SDK identity | Zoom Marketplace -> Cobrowse/Contact Center SDK app -> App Credentials | | `ZOOM_SDK_SECRET` | Yes | SDK auth signing | Zoom Marketplace -> Cobrowse/Contact Center SDK app -> App Credentials | | `COBROWSE_BASE_URL` | Optional | Regional/tenant SDK endpoint override | Cobrowse SDK documentation or tenant provisioning details | ## Runtime-only values - `ZOOM_COBROWSE_SESSION_TOKEN` If your implementation mints short-lived tokens, store them in memory/cache only. ## Notes - Keep `ZOOM_SDK_SECRET` server-side. - Some samples use aliases (`SDK_KEY`, `SDK_SECRET`); normalize internally.